MACHINING TOOL WITH NUMERICAL CONTROL DEVICE

• US 20160041546A1
• Filed: 08/05/2015
• Published: 02/11/2016
• Est. Priority Date: 08/06/2014
• Status: Active Grant

• Current Assignee: Fanuc Corporation
• Original Assignee: Fanuc Corporation
• Inventors: NAKAHAMA, Yasuhiro
• Granted Patent: US 10,474,122 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G05B 19/19 characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
• CPC Class Codes: G05B 19/402 characterised by control arrangements for positioning, e.g. centring a tool relative to a hole in the workpiece, additional detection means to correct position G05B19/19 takes precedence
• CPC Class Codes: G05B 2219/41114 Compensation for gravity, counter balance gravity

Abstract

A machining tool with a numerical control device includes an actual gravity center calculation unit configured to calculate an actual gravity center, the actual gravity center being a whole gravity center of the machining tool and the load, a target gravity center position set unit, a movable part position correction unit configured to correct the relative position of the movable part to the fixed part, to make the target gravity center position and the whole center gravity center position of the machining tool and the load coincident.

Claims

1. A machining tool with a numerical control device, including a numerical control device, a machining tool to be controlled by the numerical control device, the machining tool having a fixed part, and a movable part on which a load is configured to be loaded, the numerical control device comprising:

a storage unit configured to store weight and gravity center position of each the fixed part, movable part, and the load;

an actual gravity center calculation unit configured to calculate an actual gravity center, the actual gravity center being a whole gravity center of the machining tool and the load, based on the gravity center position and the weight of the fixed part stored in the storage unit, the gravity center position and the weight of the movable part stored in the storage unit, a relative position of the movable part to the fixed part, and the gravity center position and the weight of the load stored in the storage unit,

a target gravity center position set unit configured to set a target gravity center position, the target gravity center position being the whole gravity center position of the machining tool and the load,

a movable part position correction unit configured to correct the relative position of the movable part to the fixed part, to make the target gravity center position set by the target gravity center position set unit and the whole center gravity center position of the machining tool and the load coincident.